
High Voltage Hall-Effect Smart Fan Motor Controller
Block Diagram (SIP5)
VCC
2
Regulator
Lock shutdown
and
Automatic recovery
Hall
Plate
Amp.
Control Logic
AH289
3 DO
4 DOB
5
1
GND
RD
Typical Application Circuit (SIP5)
Vcc
(24V)
RD
(alarm)
D2
R pu
D1
C1=1uF
289
1 2345
Coil2
Coil1
GND
48V
48V
24V DC Brush-less Fan with RD output function
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Jan 17, 2005
2/7